1/*
2 * arch/arm/mach-ks8695/include/mach/entry-macro.S
3 *
4 * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk>
5 * Copyright (C) 2006 Simtec Electronics
6 *
7 * Low-level IRQ helper macros for KS8695
8 *
9 * This file is licensed under  the terms of the GNU General Public
10 * License version 2. This program is licensed "as is" without any
11 * warranty of any kind, whether express or implied.
12*/
13
14#include <mach/hardware.h>
15#include <mach/regs-irq.h>
16
17	.macro  get_irqnr_preamble, base, tmp
18		ldr	\base, =KS8695_IRQ_VA			@ Base address of interrupt controller
19	.endm
20
21	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
22		ldr	\irqstat, [\base, #KS8695_INTMS]	@ Mask Status register
23
24		teq	\irqstat, #0
25		beq	1001f
26
27		mov	\irqnr, #0
28
29		tst	\irqstat, #0xff
30		moveq	\irqstat, \irqstat, lsr #8
31		addeq	\irqnr, \irqnr, #8
32		tsteq	\irqstat, #0xff
33		moveq	\irqstat, \irqstat, lsr #8
34		addeq	\irqnr, \irqnr, #8
35		tsteq	\irqstat, #0xff
36		moveq	\irqstat, \irqstat, lsr #8
37		addeq	\irqnr, \irqnr, #8
38		tst	\irqstat, #0x0f
39		moveq	\irqstat, \irqstat, lsr #4
40		addeq	\irqnr, \irqnr, #4
41		tst	\irqstat, #0x03
42		moveq	\irqstat, \irqstat, lsr #2
43		addeq	\irqnr, \irqnr, #2
44		tst	\irqstat, #0x01
45		addeqs	\irqnr, \irqnr, #1
461001:
47	.endm
48